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Date:	Sat, 2 May 2015 18:03:33 -0700
From:	Martin KaFai Lau <kafai@...com>
To:	Hajime Tazaki <tazaki@....wide.ad.jp>
CC:	<netdev@...r.kernel.org>, <hannes@...essinduktion.org>,
	<steffen.klassert@...unet.com>, <davem@...emloft.net>,
	<yangyingliang@...wei.com>, <shengyong1@...wei.com>,
	<Kernel-team@...com>
Subject: Re: [PATCH net-next 3/5] ipv6: Stop /128 route from disappearing
 after pmtu update

On Sat, May 02, 2015 at 06:00:55PM -0700, Martin KaFai Lau wrote:
> Can you try this patch just to confirm:
> 
> Thanks
> --Martin
> 
> diff --git i/net/ipv6/route.c w/net/ipv6/route.c
> index 3522711..c0ae180 100644
> --- i/net/ipv6/route.c
> +++ w/net/ipv6/route.c
> @@ -920,7 +920,7 @@ redo_rt6_select:
> 
>  	if (!(rt->rt6i_flags & (RTF_NONEXTHOP | RTF_GATEWAY)))
>  		nrt = rt6_alloc_cow(rt, &fl6->daddr, &fl6->saddr);
> -	else if (!(rt->dst.flags & DST_HOST) || !(rt->dst.flags & RTF_LOCAL))
> +	else if (!(rt->dst.flags & DST_HOST)))
>  		nrt = rt6_alloc_clone(rt, &fl6->daddr);
>  	else
>  		goto out2;

Sorry for the noise, try this one instead

diff --git i/net/ipv6/route.c w/net/ipv6/route.c
index 3522711..f81b321 100644
--- i/net/ipv6/route.c
+++ w/net/ipv6/route.c
@@ -920,7 +920,7 @@ redo_rt6_select:

 	if (!(rt->rt6i_flags & (RTF_NONEXTHOP | RTF_GATEWAY)))
 		nrt = rt6_alloc_cow(rt, &fl6->daddr, &fl6->saddr);
-	else if (!(rt->dst.flags & DST_HOST) || !(rt->dst.flags & RTF_LOCAL))
+	else if (!(rt->dst.flags & DST_HOST))
 		nrt = rt6_alloc_clone(rt, &fl6->daddr);
 	else
 		goto out2;
--
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